Countries by Nuclear Energy Share of Electricity 2025

About This Dataset

Countries ranked by the percentage of national electricity generation derived from nuclear power plants in 2025, according to IAEA Power Reactor Information System and IEA Electricity Statistics. France generates approximately 70% of its electricity from nuclear power — the highest share of any large economy and the product of a deliberate energy policy decision made after the 1973 oil crisis to achieve electricity independence through a standardised fleet of pressurised water reactors built at industrial scale by state utility EDF. This nuclear dependency has given France among the lowest carbon intensity electricity in Europe and among the cheapest wholesale electricity prices, though it has created a concentration of infrastructure risk that became apparent during the drought-related reactor cooling crisis of 2022.

Analysis

The top three in Nuclear Share of Electricity (%) in 2025 are France (70), Slovakia (58) and Ukraine (55). The 8 entries cover a range of 51.4, from 70 down to 18.6. First and second are separated by 12, so the leader sits inside the field rather than apart from it. The field is close behind: 5 of the 8 sit at half the leader's figure or above (35+).

Source: Wikipedia

Key Findings

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France leads in Nuclear Share of Electricity (%) with 70 in 2025.

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Average Nuclear Share of Electricity (%) in 2025: 45 · median: 49.

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Gap in 2025: France is 3.8× larger than United States.

Countries by Nuclear Energy Share of Electricity 2025

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Data Insights Below

Data Insights

Numbers, trends & sources behind this chart

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Data Points

8 categories · 1 year

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Top Value

France

Nuclear Share of Electricity (%) · 2025

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Metrics

Nuclear Share of Electricity (%)

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Period

2025

Single year snapshot

Methodology & source

Data source: Wikipedia
Coverage: 8 entities · 2025 · 8 observations
Measure: Nuclear Share of Electricity (%)
Last updated: 6 September 2026
Compiled by: The ANYSTAT team, from the source above

How the figures are calculated

Values are shown as reported by the source. Nothing is rescaled, rebased or converted — the only changes are thousand separators and decimals shown to two places.
Entities are ranked highest-first on their value in 2025.